﻿

using System;
using System.Collections.Generic;
using System.Text;

namespace AbstractFactoryPattern.Background
{
    public  interface IBackground
    {
        #region 背景色填充
        /// <summary>
        ///背景色填充 
        /// </summary>
        /// <returns></returns>
        string Fill();
        #endregion 
    }
}
